Progress in preparation technology and industrialization of nano-sized nickel powder

Various methods about preparation of nano-sized nickel powder, i.e., the physical and chemical methods, and industrialization of the methods were reviewed. Comparing with physical methods, chemical methods are considered good methods for the preparation of the products. Controlling particle size of the products, upgrading its purity, and lowering cost of production are the main problems concerning chemical methods. Some suggestions about industrialization of nano-nickel powder production in the future are presented.